I run around 3000 miles on the '76 4/4, though this does vary - it's on classic insurance so is limited to 5k miles in any year.
I did 3k miles in the +4 in the first 4 months of ownership last year.
My annual mielage (in my own vehicles) is somewhere in the region of 15k, though this has probably dropped 10% or so since early May now that the regular trips to family have stopped. Making up for a it a little by trying to get to a few more events...
Regular commute to work comes in at approx 8k miles pa.
Cheers,